It was a smartphone released by Apple in 2008. It was the second generation of the iPhone, and it featured GPS capabilities, support for 3G cellular networks, and the ability to install third-party applications. It had a 3.5-inch display with a resolution of 480×320 pixels, and it was powered by a 620 MHz ARM 11 processor. It also had a 2-megapixel camera, and it came with 8 or 16GB of storage. The iPhone 3G ran the iPhone OS, which later became known as iOS. It was succeeded by the iPhone 3GS in 2009.